Anthropic Lake Mariner
Anthropic Lake Mariner is an operating + expanding ai campus in Barker, New York. Operated or owned by AI XPV Platform; used by Anthropic. Current power: 49 MW (estimated). Planned capacity: 441 MW (estimated). Verification: verified operating. 9 cited sources.
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Cite this
Datacenter Source. “Anthropic Lake Mariner.” /facilities/anthropic-lake-mariner-barker-ny. Data as of 2026-10-12. Accessed 2026-10-12.
@misc{datacentersource_anthropic_lake_mariner_barker_ny_2026,
title = {{Anthropic Lake Mariner}},
author = {{Datacenter Source}},
year = {2026},
howpublished = {\url{/facilities/anthropic-lake-mariner-barker-ny}},
note = {Data as of 2026-10-12; accessed 2026-10-12. Compiled from cited sources, including OpenStreetMap contributors (ODbL) and Epoch AI (CC BY 4.0)},
}Please also cite the original source of any specific figure (linked beside it).
POWER & GRID
Time-to-power · verification · interconnectionPower reality
- ⚠ No NYISO load interconnection request matched to this site.
- ⚠ No permit record linked to this site yet.
How the time-to-power window was estimated
- From “Under construction”, large loads have typically taken 0.5–2 more years to first power (editorial range; see Methodology).
- The window is a range of plausible outcomes under these assumptions, not a forecast. It moves as new filings, queue updates or imagery arrive.
Project verification
- Announcedimplied by a later stage
- Land acquiredimplied by a later stage
- Planning / zoningimplied by a later stage
- Permittingimplied by a later stage
- Interconnection application
- Feasibility study
- System impact study
- Facilities study
- Interconnection agreement / service contract
- Financing
- EnergizationMay 31, 2026
Satellite imagery
- May 31, 2026 · Building 1 is operational. On February 26, Terawulf [stated](https://investors.terawulf.com/news-events/press-releases/detail/132/terawulf-reports-fourth-quarter-and-full-year-2025[1]
- OperationalMay 31, 2026
Satellite imagery
- May 31, 2026 · Building 1 is operational. On February 26, Terawulf [stated](https://investors.terawulf.com/news-events/press-releases/detail/132/terawulf-reports-fourth-quarter-and-full-year-2025[1]
● documented · ◌ implied by a later stage · ○ no evidence found. Dates are those of the earliest dated evidence, which can be later than when a stage actually began. Evidence classes: Model estimate, Satellite imagery.
Grid path
- →facilityAnthropic Lake Mariner
- →substationOn-site substation[1]Satellite imageryLikely1 substation outline traced inside the campus on satellite imagery
- →transmissionNot identifiedUnknownUnverifiedNo transmission line mapped within 2 km.
- →utilityNiagara Mohawk Power Corp.[2]Service territoryLikelyRetail service territory containing the site
- Substation capacity:
- not published
- Required upgrades:
- not yet sourced
- Congestion:
- not yet sourced (no nodal price data)
Dashed boxes are based on proximity only and do not establish which asset serves the site.
Interconnection records
No interconnection-queue record is linked to this site. Of the ISOs we ingest, only NYISO publishes large-load requests; PJM, ERCOT, MISO, SPP and CAISO queues list generation only.
On-site & dedicated generation
No on-site, behind-the-meter or dedicated generation found in sources.
LOCAL IMPACT
Water · generation · incentives · regulation · ratesWater & cooling1
- 0 million gal/day[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Jul 23, 2026modeled water use
Epoch AI's modeled estimate at the latest observed milestone, in million gallons per day. Not a permit or metered figure.
On-site generation & air permits
Not yet collected: we haven't found a source for on-site generation or an air permit for this site. Know one? Add a source
Incentives
Not yet collected: we haven't found a source for tax abatements, PILOTs or other incentives for this project. Know one? Add a source
Regulatory events
Not yet collected: we haven't found a source for hearings, rezonings, permits or commission proceedings. Know one? Add a source
Utility & rates
Not yet collected: we haven't found a source for a large-load tariff or commission docket for Niagara Mohawk Power Corp.. Know one? Add a source
Location & imagery
Mapped outline- Coordinates
- 43.35873, -78.59833
- Address
- 7725 Lake Rd, Barker, NY 14012[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likely
- County
- Niagara County
No openly licensed ground-level photos matched to this site yet.
Ownership, operation & customers
- 1. Property owner of recordNot identified
- 2. Owner / developer
- 3. OperatorNot identified
- 4. Tenant / cloudNot identified
- 5. End customer / workload
Each link is sourced separately. The property owner of record is often a special-purpose entity; the same company appearing in two roles is shown only when sources say so.
All parties with evidence
- Owner
- Utility
Most likely retail provider among 2 overlapping service territories (largest retail sales; territory polygons are approximate). Also overlapping: New York State Elec & Gas Corp.
- Investor
Power (all fields)
- Current facility power
- 49 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Estimated total facility power (IT plus cooling and overhead) at the latest observed milestone.
- Current IT capacity
- 42 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Estimated IT load currently online, based on buildings observed operational.
- Planned capacity
- 441 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Projected facility power at the last tracked milestone (2027-03-31); not necessarily full build-out.
- Estimated annual consumption
- 300 GWh/yr[3]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Oct 12, 2026.Speculativeestimated
49 MW × 8,760 h × 70% utilization.
Capacity figures are nameplate or contracted; annual consumption is a labeled model estimate, not metered data.
Grid & electricity
- ISO / RTO
- NYISO[4]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived
Location falls inside this ISO/RTO footprint.
- Balancing authority
- NYIS[2]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.Likelyderived
Control area of the containing utility territory.
- State avg. industrial price
- 10.81¢/kWh[5]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed
New York statewide average, July 2026.
- State avg. commercial price
- 24.18¢/kWh[5]ConfirmedBacked by a filing, deed, permit, interconnection-queue record, or a government or utility record. As of Jul 2026.Confirmed
New York statewide average, July 2026.
- Generation within 50 km
- 3.16 GW[6]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jan 1, 202502.Confirmedderived
47 EIA-reported plants within 50 km.
- Interconnection status
- Not yet sourced
- Contracted / committed power
- Not yet sourced
| Nearby infrastructure | Type | Distance | Voltage / capacity | Source |
|---|---|---|---|---|
| Slayton Settlement Road Solar Csg · RPNY Solar 3, LLC | Power plant (Solar) | 17.7 km | 7 MW | [6] |
| Lockport Energy Associates LP · Lockport Energy Associates LP | Power plant (Natural Gas) | 24.9 km | 219 MW | [6] |
| Modern Innovative Energy LLC · Innovative Energy Systems Inc | Power plant (Biomass) | 35.3 km | 6 MW | [6] |
| Model City Energy Facility · Model City Energy LLC | Power plant (Biomass) | 35.3 km | 6 MW | [6] |
| World Generation X · North American Energy Services | Power plant (Natural Gas) | 40.3 km | 52 MW | [6] |
| Lewiston Niagara · New York Power Authority | Power plant (Pumped Storage) | 41.9 km | 240 MW | [6] |
| Robert Moses Niagara · New York Power Authority | Power plant (Hydroelectric) | 43 km | 2.44 GW | [6] |
| Reworld Niagara I · Reworld Niagara I, LLC | Power plant (Biomass) | 45 km | 36 MW | [6] |
Utility, ISO and nearby assets are derived from the site's location. Proximity to a substation or line doesn't establish the interconnection; that needs a utility filing or interconnection-queue record. Queue requests are applications, not commitments — most never reach operation.
Construction & permitting
- Announced—
- Land acquired—
- Permitting—
- Construction startJun 11, 2025[1]
- First operationalMay 31, 2026[1]
- Expected completionMar 31, 2027[1]Projected
- Planned capacity
- 441 MW[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Projected facility power at the last tracked milestone (2027-03-31); not necessarily full build-out.
- Buildings (planned)
- 3[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyderived
Count of building outlines traced on satellite imagery.
- Buildings operational
- 1[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Real estate
None sourced yet
None sourced yet
None sourced yet
- Capital cost / investment
- $1.6B[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
Modeled total capital cost (2025 USD) of capacity currently operational, incl. compute hardware.
- Annual property tax
- Not yet sourced
No county parcel or assessor records linked yet. County records are currently ingested for Loudoun County, VA and Maricopa County, AZ.
Size
- Floor area
- Not yet sourced
Compute
- Chip types
- TPU v7[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Confirmed
- Compute (H100-equivalents)
- 58,600[1]Est.Modeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure. As of Jul 23, 2026.Likelyestimated
What changed (last 3 years)
Follow this facility (RSS)- Buildings operational
- StatusUnder constructionJun 11, 2025[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.→Operating + expandingMay 31, 2026[1]EstimatedModeled, measured from satellite imagery, inferred from community mapping, or computed by this site. Not a disclosed figure.
Timeline
- Jun 11, 2025[1]
Land clearing begins for Building 1 (AKA CB3).
- Mar 2, 2026[1]
Building 1 appears to have a complete shell and cooling equipment. Building 2 shell is still under construction, but 17 cooling units are already loaded on the roof. The outline of Building 3 is visible at the foundation.
Building 1 is operational. On February 26, Terawulf stated that CB3 was expected to be energized by mid-May 2026. A drone video commissioned from RAAD shows several cooling units operating on May 8. It's therefore likely that the building was fully operational around this date.
Building 1 looks complete, consistent with it going operational back in May. Building 2 is mostly complete, with the row of backup generators on the east side of the building still being installed. Building 3 shell is complete, with rooftop coolers midway through installation, and no neighboring generators installed/visible yet.
Building 2 (AKA CB4) is operational. On February 26, Terawulf stated that CB4 was expected to be energized by Q3 2026.
Building 3 (AKA CB5) is operational. On February 26, 2026, Terawulf stated that CB5 was expected to be energized by Q4 2026. However, based on the pace of Building 2, and comparisons to other projects like Stargate Abilene, we think this is optimistic. We expect a 3-month delay past the end of Q4 2026 to get to full operational capacity.
All claims (provenance audit)
34| Field | Value | Source | Confidence | As of | Status |
|---|---|---|---|---|---|
| Name | Anthropic Lake Mariner | [1] | Likely | 2026-07-23 | Shown |
| Status | Under construction | [1] derived | Likely | 2025-06-11 | Superseded / alternative |
| Status | Under construction | [1] derived | Likely | 2026-03-02 | Superseded / alternative |
| Status | Operating + expanding | [1] derived | Likely | 2026-05-31 | Superseded / alternative |
| Status | Operating + expanding | [1] derived | Likely | 2026-07-23 | Shown |
| Facility type | AI campus | [1] derived | Likely | 2026-07-23 | Shown |
| Address | 7725 Lake Rd, Barker, NY 14012 | [1] | Likely | 2026-07-23 | Shown |
| Owner | AI XPV PlatformOwner: AI XPV Platform | [1] | Confirmed | 2026-07-23 | Shown |
| End users | AnthropicUsers: Anthropic | [1] | Likely | 2026-07-23 | Shown |
| Utility | Niagara Mohawk Power Corp.territory 13573: NIAGARA MOHAWK POWER CORP. (INVESTOR OWNED, NATIONAL GRID GROUP | [2] derived | Unverified | 2022 | Shown |
| Investors | GoogleInvestors: Google | [1] | Confirmed | 2026-07-23 | Shown |
| Investors | BlackstoneInvestors: Blackstone | [1] | Confirmed | 2026-07-23 | Shown |
| Current facility power | 49 MW | [1] estimated | Likely | 2026-07-23 | Shown |
| Current facility power | 49 MW | [1] estimated | Likely | 2026-05-31 | Superseded / alternative |
| Current IT capacity | 42 MW | [1] estimated | Likely | 2026-07-23 | Shown |
| Current IT capacity | 42 MW | [1] estimated | Likely | 2026-05-31 | Superseded / alternative |
| Planned capacity | 441 MW | [1] estimated | Likely | 2026-07-23 | Shown |
| Estimated annual consumption | 300 GWh/yr | [3] estimated | Speculative | 2026-10-12 | Shown |
| ISO / RTO | NYISONEW YORK INDEPENDENT SYSTEM OPERATOR | [4] derived | Likely | — | Shown |
| Balancing authority | NYIS | [2] derived | Likely | — | Shown |
| State avg. industrial price | 10.81¢/kWh | [5] | Confirmed | 2026-07 | Shown |
| State avg. commercial price | 24.18¢/kWh | [5] | Confirmed | 2026-07 | Shown |
| Generation within 50 km | 3.16 GW | [6] derived | Confirmed | 202502 | Shown |
| Buildings (planned) | 3 | [1] derived | Likely | 2026-07-23 | Shown |
| Buildings operational | 1 | [1] estimated | Likely | 2026-07-23 | Shown |
| Buildings operational | 0 | [1] estimated | Likely | 2025-06-11 | Superseded / alternative |
| Buildings operational | 0 | [1] estimated | Likely | 2026-03-02 | Superseded / alternative |
| Buildings operational | 1 | [1] estimated | Likely | 2026-05-31 | Superseded / alternative |
| Capital cost / investment | $1.6B | [1] estimated | Likely | 2026-07-23 | Shown |
| Compute (H100-equivalents) | 58,600 | [1] estimated | Likely | 2026-07-23 | Shown |
| Chip types | TPU v7 | [1] | Confirmed | 2026-07-23 | Shown |
| Construction start | Jun 11, 2025 | [1] derived | Likely | 2026-07-23 | Shown |
| First operational | May 31, 2026 | [1] derived | Likely | 2026-07-23 | Shown |
| Expected completion | Mar 31, 2027 | [1] estimated | Speculative | 2026-07-23 | Shown |